http://www.cnblogs.com/yhongji/p/9383857.html
https://www.jianshu.com/p/1565f38f4236
./configure --with-ssl --prefix=/usr/local/python3
zipimport.ZipImportError: can't decompress data; zlib not available
Makefile:1079: recipe for target 'install' failed
make: *** [install] Error 1
解决办法：安装依赖
1 sudo apt-get install -y make build-essential libssl-dev zlib1g-dev libbz2-dev \ 2 libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev \ 3 xz-utils tk-dev
sudo apt-get install build-essential sudo apt-get install python3-dev sudo apt-get install libxml2-de; sudo apt-get install libxslt1-dev sudo apt-get install libssl-dev apt-get install -y libffi-dev
安装一个python3.6.6，终于可以pip3下载了。
ln -s /usr/local/python3/bin/python3.6 /usr/bin/python3 ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3
sudo vim /usr/bin/lsb_release
修改第一行，指明python的版本号，若安装的是python3.6则修改：
#!/usr/bin/python3
为：
#!/usr/bin/python3.6
https://blog.csdn.net/u012114438/article/details/83578113
卸载了python3.4，导致没有终端，页面没有状态栏。 不要卸载apt-get install nautilus-open-terminal
https://blog.csdn.net/terence1212/article/details/51340595
下面这个是重新安装桌面，可能会用到。重新安装桌面要startx启动。
sudo apt-get install ubuntu-minimal ubuntu-standard ubuntu-desktop
startx